Zhu Lin, Li Jian-Wei, Zhang Qing-Yang, Wu Song-Song, Shen Shi-Hua
Department of Ultrasound, Fujian Provincial Hospital, Fuzhou 350001, China.
Zhonghua Wei Chang Wai Ke Za Zhi. 2010 Jan;13(1):48-51.
To investigate the features of tumor appearance on transabdominal color doppler ultrasonography (CDUS) and its diagnostic value in the differential diagnosis between intestinal stromal tumor and intestinal carcinoma.
The preoperative features of the tumor mass on CDUS were reviewed retrospectively in 25 patients with intestinal stromal tumor and in 30 with intestinal carcinoma. All the cases were confirmed by surgery and pathological examination.
Of the 25 cases with intestinal stromal tumor, 23 (92%) were found to be located in the small intestine and the majority presented as a hypoechoic solid mass with clear demarcation and rich color flow signals on CDUS, not growing around the intestinal cavity. A heterogeneous echogenic mass with anechoic space was shown in some stromal tumors. The CDUS showed that carcinoma were all in the colon or the rectum, and showed heterogeneous echoic solid masses with ill-defined margin, few color flow signals and pseudokidney sign was often observed in intestinal carcinoma because the mass grew around the intestinal cavity. Internal echo pattern, the relation between mass and intestinal cavity, and color doppler flow signal of intestinal stromal tumors were significantly different from those of intestinal carcinomas (all P<0.05). There were no statistical differences in lymphatic metastasis (P>0.05).
CDUS is an effective method to differentiate intestinal stromal tumor from carcinoma.
探讨经腹彩色多普勒超声（CDUS）对肠道间质瘤和肠癌的肿瘤表现特征及其在鉴别诊断中的价值。
回顾性分析25例肠道间质瘤和30例肠癌患者术前CDUS检查的肿瘤肿块特征。所有病例均经手术及病理检查确诊。
25例肠道间质瘤中，23例（92%）位于小肠，多数表现为低回声实性肿块，边界清晰，CDUS显示血流信号丰富，不向肠腔周围生长。部分间质瘤表现为不均匀回声肿块伴无回声区。CDUS显示癌均位于结肠或直肠，表现为不均匀回声实性肿块，边界不清，血流信号少，因肿块向肠腔周围生长，肠癌常可见假肾征。肠道间质瘤与肠癌的内部回声形态、肿块与肠腔的关系及彩色多普勒血流信号有显著差异（均P<0.05）。淋巴结转移方面无统计学差异（P>0.05）。
CDUS是鉴别肠道间质瘤与癌的有效方法。
